Effective but very cruel death. I would ask that if anyone is going to kill animals, to not do so by indiscriminately causing organ failure. Predator calls and shooting the coyote culprits is much more humane. Just my .02Extremely effective, especially on your own dogs, cats, etc. It needs to be somewhere that only the coyotes can get to, which will probably be tricky.
I have the impression that the stuff tastes like Mountain Dew, but I'd rather not find out.